Add support for non vultr block devices and also check first to avoid errors

ansible/playbooks/files/interfaces.sh

@@ -59,9 +59,15 @@ fi
 if [[ "${HOSTNAME}" =~ "compute" ]]; then
   let hostpart='6'
 fi
-if [[ "${HOSTNAME}" =~ "storage" ]]; then
+if [[ "${HOSTNAME}" =~ "storage1" ]]; then
   let hostpart='7'
 fi
+if [[ "${HOSTNAME}" =~ "storage2" ]]; then
+  let hostpart='8'
+fi
+if [[ "${HOSTNAME}" =~ "storage3" ]]; then
+  let hostpart='9'
+fi
 
 if [[ ! -z "${iface_mgmt}" ]]; then
 cat << EOF > ifcfg-br-mgmt

ansible/playbooks/tasks/storage-host.yml

@@ -9,9 +9,18 @@
     name: targetcli
   notify: enable_targetd
 
+- name: Check if cinder_pv_device is set
+  stat:
+    path: "{{ cinder_pv_device | default('/dev/vdb') }}"
+  register: stat_cinder_pv_dev
+
 - name: Create volume group for cinder
   lvg:
     pv_options: --metadatasize=2048
     pvs: "{{ cinder_pv_device | default('/dev/vdb') }}"
     vg: cinder-volumes
+  when:
+    - stat_cinder_pv_dev.stat.exists
+    - stat.cinder_pv_device.stat.isblk
+
 ...